In reply to The New NickB:
The Duddon doesn't exist any more. For a long time, it only existed in the imaginations of those who truly believed in it. This ardent sect claimed it was the most wonderful valley in the Lakes, quiet, peaceful, with no pay and display parking or Wainwright baggers. Moreover, it was full of untapped potential - vast quantities of unclimbed rock! Many sneered at them, but they would continue to adamantly hold onto their beliefs, even publishing arcane pamphlets suggesting processes of divination that could be used to commune with the valley. All was well.
Then someone went and published a guidebook not only claiming to prove the existence and location of the Duddon, but to even to have documented it in glossy photo topos! Suddenly - wumpf! - the Duddon disappeared in a cloud of rationality.
Sitting at home, drinking a cup of tea, Al Phizacklea winced. "What is it?" said Keith. Al looked up, through watering eyes: "I felt a great disturbance in the force, as if millions of microbuttresses cried out in terror, and were suddenly silenced..."
(With profuse apologies to Doug and George...)
Post edited at 10:07